Mexico Court Rejects Presidential Vote Challenge

By

Juan Montes And

Anthony Harrup

Aug. 30, 2012 10:45 p.m. ET

MEXICO CITY—Mexico's top electoral court turned down Thursday a legal bid by a left-wing coalition to annul the July 1 presidential election, upholding the vote and paving the way for the winner, Enrique Peña Nieto of the Institutional Revolutionary Party, to take office Dec. 1 for a six-year term.

The decision, widely expected, was a setback for Andrés Manuel López Obrador, the populist former Mexico City mayor who came in second...